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Finding the Fourth Proportional to 157,570.80, 235,918.80 and 153,196.80

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Solution

The fourth proportional to 157,570.80, 235,918.80 and 153,196.80 is: 229,369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,570.80 : 235,918.80 = 153,196.80 : x
  2. Step 2: Convert to fraction form
    157,570.80/235,918.80 = 153,196.80/x
  3. Step 3: Cross multiply
    157,570.80x = 235,918.80 × 153,196.80
  4. Step 4: Simplify right side
    157,570.80x = 36,142,005,219.84
  5. Step 5: Solve for x
    x = 36,142,005,219.84/157,570.80
  6. Step 6: Final answer
    x = 229,369.94

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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.