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Finding the Fourth Proportional to 102,585.60, 153,878.40 and 32,470.40

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Solution

The fourth proportional to 102,585.60, 153,878.40 and 32,470.40 is: 48,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,585.60 : 153,878.40 = 32,470.40 : x
  2. Step 2: Convert to fraction form
    102,585.60/153,878.40 = 32,470.40/x
  3. Step 3: Cross multiply
    102,585.60x = 153,878.40 × 32,470.40
  4. Step 4: Simplify right side
    102,585.60x = 4,996,493,199.36
  5. Step 5: Solve for x
    x = 4,996,493,199.36/102,585.60
  6. Step 6: Final answer
    x = 48,705.60

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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.