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Finding the Fourth Proportional to 124,059.60, 186,089.40 and 64,913.40

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Solution

The fourth proportional to 124,059.60, 186,089.40 and 64,913.40 is: 97,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,059.60 : 186,089.40 = 64,913.40 : x
  2. Step 2: Convert to fraction form
    124,059.60/186,089.40 = 64,913.40/x
  3. Step 3: Cross multiply
    124,059.60x = 186,089.40 × 64,913.40
  4. Step 4: Simplify right side
    124,059.60x = 12,079,695,657.96
  5. Step 5: Solve for x
    x = 12,079,695,657.96/124,059.60
  6. Step 6: Final answer
    x = 97,370.10

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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.