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Finding the Fourth Proportional to 186,323.52, 257,119.56 and 101,438.88

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Solution

The fourth proportional to 186,323.52, 257,119.56 and 101,438.88 is: 139,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,323.52 : 257,119.56 = 101,438.88 : x
  2. Step 2: Convert to fraction form
    186,323.52/257,119.56 = 101,438.88/x
  3. Step 3: Cross multiply
    186,323.52x = 257,119.56 × 101,438.88
  4. Step 4: Simplify right side
    186,323.52x = 26,081,920,192.49
  5. Step 5: Solve for x
    x = 26,081,920,192.49/186,323.52
  6. Step 6: Final answer
    x = 139,981.90

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1.5x scale

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.