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Finding the Fourth Proportional to 78,820.68, 118,248.84 and 26,232.24

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Solution

The fourth proportional to 78,820.68, 118,248.84 and 26,232.24 is: 39,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,820.68 : 118,248.84 = 26,232.24 : x
  2. Step 2: Convert to fraction form
    78,820.68/118,248.84 = 26,232.24/x
  3. Step 3: Cross multiply
    78,820.68x = 118,248.84 × 26,232.24
  4. Step 4: Simplify right side
    78,820.68x = 3,101,931,950.60
  5. Step 5: Solve for x
    x = 3,101,931,950.60/78,820.68
  6. Step 6: Final answer
    x = 39,354.29

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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.