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Finding the Fourth Proportional to 93,094.40, 139,641.60 and 72,332.80

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Solution

The fourth proportional to 93,094.40, 139,641.60 and 72,332.80 is: 108,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,094.40 : 139,641.60 = 72,332.80 : x
  2. Step 2: Convert to fraction form
    93,094.40/139,641.60 = 72,332.80/x
  3. Step 3: Cross multiply
    93,094.40x = 139,641.60 × 72,332.80
  4. Step 4: Simplify right side
    93,094.40x = 10,100,667,924.48
  5. Step 5: Solve for x
    x = 10,100,667,924.48/93,094.40
  6. Step 6: Final answer
    x = 108,499.20

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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.