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Finding the Fourth Proportional to 78,675.04, 117,950.88 and 53,652.88

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Solution

The fourth proportional to 78,675.04, 117,950.88 and 53,652.88 is: 80,437.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,675.04 : 117,950.88 = 53,652.88 : x
  2. Step 2: Convert to fraction form
    78,675.04/117,950.88 = 53,652.88/x
  3. Step 3: Cross multiply
    78,675.04x = 117,950.88 × 53,652.88
  4. Step 4: Simplify right side
    78,675.04x = 6,328,404,410.53
  5. Step 5: Solve for x
    x = 6,328,404,410.53/78,675.04
  6. Step 6: Final answer
    x = 80,437.26

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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.