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Finding the Fourth Proportional to 176,895.20, 243,700.08 and 123,087.80

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Solution

The fourth proportional to 176,895.20, 243,700.08 and 123,087.80 is: 169,572.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,895.20 : 243,700.08 = 123,087.80 : x
  2. Step 2: Convert to fraction form
    176,895.20/243,700.08 = 123,087.80/x
  3. Step 3: Cross multiply
    176,895.20x = 243,700.08 × 123,087.80
  4. Step 4: Simplify right side
    176,895.20x = 29,996,506,707.02
  5. Step 5: Solve for x
    x = 29,996,506,707.02/176,895.20
  6. Step 6: Final answer
    x = 169,572.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.