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Finding the Fourth Proportional to 97,275.60, 145,813.10 and 70,554.65

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Solution

The fourth proportional to 97,275.60, 145,813.10 and 70,554.65 is: 105,759.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,275.60 : 145,813.10 = 70,554.65 : x
  2. Step 2: Convert to fraction form
    97,275.60/145,813.10 = 70,554.65/x
  3. Step 3: Cross multiply
    97,275.60x = 145,813.10 × 70,554.65
  4. Step 4: Simplify right side
    97,275.60x = 10,287,791,154.08
  5. Step 5: Solve for x
    x = 10,287,791,154.08/97,275.60
  6. Step 6: Final answer
    x = 105,759.22

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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.