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Finding the Fourth Proportional to 52,339.68, 78,509.52 and 43,068.20

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Solution

The fourth proportional to 52,339.68, 78,509.52 and 43,068.20 is: 64,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,339.68 : 78,509.52 = 43,068.20 : x
  2. Step 2: Convert to fraction form
    52,339.68/78,509.52 = 43,068.20/x
  3. Step 3: Cross multiply
    52,339.68x = 78,509.52 × 43,068.20
  4. Step 4: Simplify right side
    52,339.68x = 3,381,263,709.26
  5. Step 5: Solve for x
    x = 3,381,263,709.26/52,339.68
  6. Step 6: Final answer
    x = 64,602.30

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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.