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Finding the Fourth Proportional to 186,539.92, 257,417.59 and 101,655.16

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Solution

The fourth proportional to 186,539.92, 257,417.59 and 101,655.16 is: 140,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,539.92 : 257,417.59 = 101,655.16 : x
  2. Step 2: Convert to fraction form
    186,539.92/257,417.59 = 101,655.16/x
  3. Step 3: Cross multiply
    186,539.92x = 257,417.59 × 101,655.16
  4. Step 4: Simplify right side
    186,539.92x = 26,167,826,298.26
  5. Step 5: Solve for x
    x = 26,167,826,298.26/186,539.92
  6. Step 6: Final answer
    x = 140,280.03

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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.