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Finding the Fourth Proportional to 257,341.60, 355,127.11 and 141,053.95

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Solution

The fourth proportional to 257,341.60, 355,127.11 and 141,053.95 is: 194,652.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,341.60 : 355,127.11 = 141,053.95 : x
  2. Step 2: Convert to fraction form
    257,341.60/355,127.11 = 141,053.95/x
  3. Step 3: Cross multiply
    257,341.60x = 355,127.11 × 141,053.95
  4. Step 4: Simplify right side
    257,341.60x = 50,092,081,617.58
  5. Step 5: Solve for x
    x = 50,092,081,617.58/257,341.60
  6. Step 6: Final answer
    x = 194,652.10

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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.