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Finding the Fourth Proportional to 124,491.40, 186,712.80 and 41,385.40

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Solution

The fourth proportional to 124,491.40, 186,712.80 and 41,385.40 is: 62,070.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,491.40 : 186,712.80 = 41,385.40 : x
  2. Step 2: Convert to fraction form
    124,491.40/186,712.80 = 41,385.40/x
  3. Step 3: Cross multiply
    124,491.40x = 186,712.80 × 41,385.40
  4. Step 4: Simplify right side
    124,491.40x = 7,727,183,913.12
  5. Step 5: Solve for x
    x = 7,727,183,913.12/124,491.40
  6. Step 6: Final answer
    x = 62,070.02

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1.5x scale

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.