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Finding the Fourth Proportional to 157,655.04, 236,523.52 and 78,766.08

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Solution

The fourth proportional to 157,655.04, 236,523.52 and 78,766.08 is: 118,169.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,655.04 : 236,523.52 = 78,766.08 : x
  2. Step 2: Convert to fraction form
    157,655.04/236,523.52 = 78,766.08/x
  3. Step 3: Cross multiply
    157,655.04x = 236,523.52 × 78,766.08
  4. Step 4: Simplify right side
    157,655.04x = 18,630,030,498.20
  5. Step 5: Solve for x
    x = 18,630,030,498.20/157,655.04
  6. Step 6: Final answer
    x = 118,169.58

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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.