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Finding the Fourth Proportional to 86,079.52, 118,782.48 and 52,539.04

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Solution

The fourth proportional to 86,079.52, 118,782.48 and 52,539.04 is: 72,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,079.52 : 118,782.48 = 52,539.04 : x
  2. Step 2: Convert to fraction form
    86,079.52/118,782.48 = 52,539.04/x
  3. Step 3: Cross multiply
    86,079.52x = 118,782.48 × 52,539.04
  4. Step 4: Simplify right side
    86,079.52x = 6,240,717,468.02
  5. Step 5: Solve for x
    x = 6,240,717,468.02/86,079.52
  6. Step 6: Final answer
    x = 72,499.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.