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Finding the Fourth Proportional to 103,503.30, 155,145.60 and 59,034.30

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Solution

The fourth proportional to 103,503.30, 155,145.60 and 59,034.30 is: 88,489.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,503.30 : 155,145.60 = 59,034.30 : x
  2. Step 2: Convert to fraction form
    103,503.30/155,145.60 = 59,034.30/x
  3. Step 3: Cross multiply
    103,503.30x = 155,145.60 × 59,034.30
  4. Step 4: Simplify right side
    103,503.30x = 9,158,911,894.08
  5. Step 5: Solve for x
    x = 9,158,911,894.08/103,503.30
  6. Step 6: Final answer
    x = 88,489.08

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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.