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Finding the Fourth Proportional to 124,572.60, 186,837.30 and 45,646.20

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Solution

The fourth proportional to 124,572.60, 186,837.30 and 45,646.20 is: 68,461.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,572.60 : 186,837.30 = 45,646.20 : x
  2. Step 2: Convert to fraction form
    124,572.60/186,837.30 = 45,646.20/x
  3. Step 3: Cross multiply
    124,572.60x = 186,837.30 × 45,646.20
  4. Step 4: Simplify right side
    124,572.60x = 8,528,412,763.26
  5. Step 5: Solve for x
    x = 8,528,412,763.26/124,572.60
  6. Step 6: Final answer
    x = 68,461.39

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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.