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Finding the Fourth Proportional to 73,875.60, 110,813.40 and 42,674.40

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Solution

The fourth proportional to 73,875.60, 110,813.40 and 42,674.40 is: 64,011.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,875.60 : 110,813.40 = 42,674.40 : x
  2. Step 2: Convert to fraction form
    73,875.60/110,813.40 = 42,674.40/x
  3. Step 3: Cross multiply
    73,875.60x = 110,813.40 × 42,674.40
  4. Step 4: Simplify right side
    73,875.60x = 4,728,895,356.96
  5. Step 5: Solve for x
    x = 4,728,895,356.96/73,875.60
  6. Step 6: Final answer
    x = 64,011.60

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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.