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Finding the Fourth Proportional to 257,064.48, 354,420.05 and 176,351.90

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Solution

The fourth proportional to 257,064.48, 354,420.05 and 176,351.90 is: 243,139.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,064.48 : 354,420.05 = 176,351.90 : x
  2. Step 2: Convert to fraction form
    257,064.48/354,420.05 = 176,351.90/x
  3. Step 3: Cross multiply
    257,064.48x = 354,420.05 × 176,351.90
  4. Step 4: Simplify right side
    257,064.48x = 62,502,646,561.74
  5. Step 5: Solve for x
    x = 62,502,646,561.74/257,064.48
  6. Step 6: Final answer
    x = 243,139.96

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