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Finding the Fourth Proportional to 177,632.40, 266,221.80 and 72,332.40

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Solution

The fourth proportional to 177,632.40, 266,221.80 and 72,332.40 is: 108,406.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,632.40 : 266,221.80 = 72,332.40 : x
  2. Step 2: Convert to fraction form
    177,632.40/266,221.80 = 72,332.40/x
  3. Step 3: Cross multiply
    177,632.40x = 266,221.80 × 72,332.40
  4. Step 4: Simplify right side
    177,632.40x = 19,256,461,726.32
  5. Step 5: Solve for x
    x = 19,256,461,726.32/177,632.40
  6. Step 6: Final answer
    x = 108,406.25

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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.