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Finding the Fourth Proportional to 101,875.60, 140,585.68 and 56,552.40

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Solution

The fourth proportional to 101,875.60, 140,585.68 and 56,552.40 is: 78,040.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,875.60 : 140,585.68 = 56,552.40 : x
  2. Step 2: Convert to fraction form
    101,875.60/140,585.68 = 56,552.40/x
  3. Step 3: Cross multiply
    101,875.60x = 140,585.68 × 56,552.40
  4. Step 4: Simplify right side
    101,875.60x = 7,950,457,609.63
  5. Step 5: Solve for x
    x = 7,950,457,609.63/101,875.60
  6. Step 6: Final answer
    x = 78,040.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.