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Finding the Fourth Proportional to 93,518.60, 140,277.90 and 76,897.40

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Solution

The fourth proportional to 93,518.60, 140,277.90 and 76,897.40 is: 115,346.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,518.60 : 140,277.90 = 76,897.40 : x
  2. Step 2: Convert to fraction form
    93,518.60/140,277.90 = 76,897.40/x
  3. Step 3: Cross multiply
    93,518.60x = 140,277.90 × 76,897.40
  4. Step 4: Simplify right side
    93,518.60x = 10,787,005,787.46
  5. Step 5: Solve for x
    x = 10,787,005,787.46/93,518.60
  6. Step 6: Final answer
    x = 115,346.10

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1.5x scale

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.