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Finding the Fourth Proportional to 93,692.86, 129,281.04 and 53,406.70

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Solution

The fourth proportional to 93,692.86, 129,281.04 and 53,406.70 is: 73,692.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,692.86 : 129,281.04 = 53,406.70 : x
  2. Step 2: Convert to fraction form
    93,692.86/129,281.04 = 53,406.70/x
  3. Step 3: Cross multiply
    93,692.86x = 129,281.04 × 53,406.70
  4. Step 4: Simplify right side
    93,692.86x = 6,904,473,718.97
  5. Step 5: Solve for x
    x = 6,904,473,718.97/93,692.86
  6. Step 6: Final answer
    x = 73,692.63

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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.