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Finding the Fourth Proportional to 98,931, 148,439.70 and 36,584.76

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Solution

The fourth proportional to 98,931, 148,439.70 and 36,584.76 is: 54,893.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,931 : 148,439.70 = 36,584.76 : x
  2. Step 2: Convert to fraction form
    98,931/148,439.70 = 36,584.76/x
  3. Step 3: Cross multiply
    98,931x = 148,439.70 × 36,584.76
  4. Step 4: Simplify right side
    98,931x = 5,430,630,798.97
  5. Step 5: Solve for x
    x = 5,430,630,798.97/98,931
  6. Step 6: Final answer
    x = 54,893.12

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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.