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Finding the Fourth Proportional to 88,870.81, 122,643.18 and 53,063.95

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Solution

The fourth proportional to 88,870.81, 122,643.18 and 53,063.95 is: 73,229.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,870.81 : 122,643.18 = 53,063.95 : x
  2. Step 2: Convert to fraction form
    88,870.81/122,643.18 = 53,063.95/x
  3. Step 3: Cross multiply
    88,870.81x = 122,643.18 × 53,063.95
  4. Step 4: Simplify right side
    88,870.81x = 6,507,931,132.09
  5. Step 5: Solve for x
    x = 6,507,931,132.09/88,870.81
  6. Step 6: Final answer
    x = 73,229.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.