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Finding the Fourth Proportional to 472,349.55, 708,070.73 and 156,643.95

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Solution

The fourth proportional to 472,349.55, 708,070.73 and 156,643.95 is: 234,815.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,349.55 : 708,070.73 = 156,643.95 : x
  2. Step 2: Convert to fraction form
    472,349.55/708,070.73 = 156,643.95/x
  3. Step 3: Cross multiply
    472,349.55x = 708,070.73 × 156,643.95
  4. Step 4: Simplify right side
    472,349.55x = 110,914,995,243.36
  5. Step 5: Solve for x
    x = 110,914,995,243.36/472,349.55
  6. Step 6: Final answer
    x = 234,815.50

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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.