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Finding the Fourth Proportional to 124,155.60, 186,233.40 and 65,009.40

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Solution

The fourth proportional to 124,155.60, 186,233.40 and 65,009.40 is: 97,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,155.60 : 186,233.40 = 65,009.40 : x
  2. Step 2: Convert to fraction form
    124,155.60/186,233.40 = 65,009.40/x
  3. Step 3: Cross multiply
    124,155.60x = 186,233.40 × 65,009.40
  4. Step 4: Simplify right side
    124,155.60x = 12,106,921,593.96
  5. Step 5: Solve for x
    x = 12,106,921,593.96/124,155.60
  6. Step 6: Final answer
    x = 97,514.10

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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.