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Finding the Fourth Proportional to 69,088.40, 103,693.35 and 40,973.30

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Solution

The fourth proportional to 69,088.40, 103,693.35 and 40,973.30 is: 61,495.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,088.40 : 103,693.35 = 40,973.30 : x
  2. Step 2: Convert to fraction form
    69,088.40/103,693.35 = 40,973.30/x
  3. Step 3: Cross multiply
    69,088.40x = 103,693.35 × 40,973.30
  4. Step 4: Simplify right side
    69,088.40x = 4,248,658,737.56
  5. Step 5: Solve for x
    x = 4,248,658,737.56/69,088.40
  6. Step 6: Final answer
    x = 61,495.98

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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.