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Finding the Fourth Proportional to 97,329.60, 145,864.80 and 69,595.20

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Solution

The fourth proportional to 97,329.60, 145,864.80 and 69,595.20 is: 104,300.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,329.60 : 145,864.80 = 69,595.20 : x
  2. Step 2: Convert to fraction form
    97,329.60/145,864.80 = 69,595.20/x
  3. Step 3: Cross multiply
    97,329.60x = 145,864.80 × 69,595.20
  4. Step 4: Simplify right side
    97,329.60x = 10,151,489,928.96
  5. Step 5: Solve for x
    x = 10,151,489,928.96/97,329.60
  6. Step 6: Final answer
    x = 104,300.13

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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.