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Finding the Fourth Proportional to 235,315.56, 353,017.08 and 77,555.12

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Solution

The fourth proportional to 235,315.56, 353,017.08 and 77,555.12 is: 116,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,315.56 : 353,017.08 = 77,555.12 : x
  2. Step 2: Convert to fraction form
    235,315.56/353,017.08 = 77,555.12/x
  3. Step 3: Cross multiply
    235,315.56x = 353,017.08 × 77,555.12
  4. Step 4: Simplify right side
    235,315.56x = 27,378,282,001.45
  5. Step 5: Solve for x
    x = 27,378,282,001.45/235,315.56
  6. Step 6: Final answer
    x = 116,347.10

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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.