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Finding the Fourth Proportional to 235,616,602.80, 353,424,904.20 and 74,058,538.80

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Solution

The fourth proportional to 235,616,602.80, 353,424,904.20 and 74,058,538.80 is: 111,087,808.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,616,602.80 : 353,424,904.20 = 74,058,538.80 : x
  2. Step 2: Convert to fraction form
    235,616,602.80/353,424,904.20 = 74,058,538.80/x
  3. Step 3: Cross multiply
    235,616,602.80x = 353,424,904.20 × 74,058,538.80
  4. Step 4: Simplify right side
    235,616,602.80x = 26,174,131,980,581,980
  5. Step 5: Solve for x
    x = 26,174,131,980,581,980/235,616,602.80
  6. Step 6: Final answer
    x = 111,087,808.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.