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Finding the Fourth Proportional to 173,419.60, 260,129.40 and 117,432.40

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Solution

The fourth proportional to 173,419.60, 260,129.40 and 117,432.40 is: 176,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,419.60 : 260,129.40 = 117,432.40 : x
  2. Step 2: Convert to fraction form
    173,419.60/260,129.40 = 117,432.40/x
  3. Step 3: Cross multiply
    173,419.60x = 260,129.40 × 117,432.40
  4. Step 4: Simplify right side
    173,419.60x = 30,547,619,752.56
  5. Step 5: Solve for x
    x = 30,547,619,752.56/173,419.60
  6. Step 6: Final answer
    x = 176,148.60

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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.