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Finding the Fourth Proportional to 104,454.40, 156,748.80 and 57,740.80

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Solution

The fourth proportional to 104,454.40, 156,748.80 and 57,740.80 is: 86,648.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,454.40 : 156,748.80 = 57,740.80 : x
  2. Step 2: Convert to fraction form
    104,454.40/156,748.80 = 57,740.80/x
  3. Step 3: Cross multiply
    104,454.40x = 156,748.80 × 57,740.80
  4. Step 4: Simplify right side
    104,454.40x = 9,050,801,111.04
  5. Step 5: Solve for x
    x = 9,050,801,111.04/104,454.40
  6. Step 6: Final answer
    x = 86,648.35

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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.