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Finding the Fourth Proportional to 47,332.70, 70,877.64 and 45,931.22

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Solution

The fourth proportional to 47,332.70, 70,877.64 and 45,931.22 is: 68,779.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,332.70 : 70,877.64 = 45,931.22 : x
  2. Step 2: Convert to fraction form
    47,332.70/70,877.64 = 45,931.22/x
  3. Step 3: Cross multiply
    47,332.70x = 70,877.64 × 45,931.22
  4. Step 4: Simplify right side
    47,332.70x = 3,255,496,475.92
  5. Step 5: Solve for x
    x = 3,255,496,475.92/47,332.70
  6. Step 6: Final answer
    x = 68,779.01

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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.