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Finding the Fourth Proportional to 103,521.60, 155,134.80 and 59,054.40

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Solution

The fourth proportional to 103,521.60, 155,134.80 and 59,054.40 is: 88,497.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,521.60 : 155,134.80 = 59,054.40 : x
  2. Step 2: Convert to fraction form
    103,521.60/155,134.80 = 59,054.40/x
  3. Step 3: Cross multiply
    103,521.60x = 155,134.80 × 59,054.40
  4. Step 4: Simplify right side
    103,521.60x = 9,161,392,533.12
  5. Step 5: Solve for x
    x = 9,161,392,533.12/103,521.60
  6. Step 6: Final answer
    x = 88,497.40

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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.