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Finding the Fourth Proportional to 124,390.47, 186,475.23 and 48,471.43

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Solution

The fourth proportional to 124,390.47, 186,475.23 and 48,471.43 is: 72,664.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,390.47 : 186,475.23 = 48,471.43 : x
  2. Step 2: Convert to fraction form
    124,390.47/186,475.23 = 48,471.43/x
  3. Step 3: Cross multiply
    124,390.47x = 186,475.23 × 48,471.43
  4. Step 4: Simplify right side
    124,390.47x = 9,038,720,941.13
  5. Step 5: Solve for x
    x = 9,038,720,941.13/124,390.47
  6. Step 6: Final answer
    x = 72,664.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.