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Finding the Fourth Proportional to 59,987.70, 89,851.95 and 49,619.70

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Solution

The fourth proportional to 59,987.70, 89,851.95 and 49,619.70 is: 74,322.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,987.70 : 89,851.95 = 49,619.70 : x
  2. Step 2: Convert to fraction form
    59,987.70/89,851.95 = 49,619.70/x
  3. Step 3: Cross multiply
    59,987.70x = 89,851.95 × 49,619.70
  4. Step 4: Simplify right side
    59,987.70x = 4,458,426,803.42
  5. Step 5: Solve for x
    x = 4,458,426,803.42/59,987.70
  6. Step 6: Final answer
    x = 74,322.35

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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.