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Finding the Fourth Proportional to 78,533.94, 108,366.96 and 53,095.68

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Solution

The fourth proportional to 78,533.94, 108,366.96 and 53,095.68 is: 73,265.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,533.94 : 108,366.96 = 53,095.68 : x
  2. Step 2: Convert to fraction form
    78,533.94/108,366.96 = 53,095.68/x
  3. Step 3: Cross multiply
    78,533.94x = 108,366.96 × 53,095.68
  4. Step 4: Simplify right side
    78,533.94x = 5,753,817,430.73
  5. Step 5: Solve for x
    x = 5,753,817,430.73/78,533.94
  6. Step 6: Final answer
    x = 73,265.36

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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.