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Finding the Fourth Proportional to 93,555.20, 140,332.80 and 64,030.70

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Solution

The fourth proportional to 93,555.20, 140,332.80 and 64,030.70 is: 96,046.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,555.20 : 140,332.80 = 64,030.70 : x
  2. Step 2: Convert to fraction form
    93,555.20/140,332.80 = 64,030.70/x
  3. Step 3: Cross multiply
    93,555.20x = 140,332.80 × 64,030.70
  4. Step 4: Simplify right side
    93,555.20x = 8,985,607,416.96
  5. Step 5: Solve for x
    x = 8,985,607,416.96/93,555.20
  6. Step 6: Final answer
    x = 96,046.05

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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.