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Finding the Fourth Proportional to 59,810.40, 89,715.60 and 34,878.60

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Solution

The fourth proportional to 59,810.40, 89,715.60 and 34,878.60 is: 52,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,810.40 : 89,715.60 = 34,878.60 : x
  2. Step 2: Convert to fraction form
    59,810.40/89,715.60 = 34,878.60/x
  3. Step 3: Cross multiply
    59,810.40x = 89,715.60 × 34,878.60
  4. Step 4: Simplify right side
    59,810.40x = 3,129,154,526.16
  5. Step 5: Solve for x
    x = 3,129,154,526.16/59,810.40
  6. Step 6: Final answer
    x = 52,317.90

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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.