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Finding the Fourth Proportional to 117,870.80, 176,611.80 and 101,152.40

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Solution

The fourth proportional to 117,870.80, 176,611.80 and 101,152.40 is: 151,561.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,870.80 : 176,611.80 = 101,152.40 : x
  2. Step 2: Convert to fraction form
    117,870.80/176,611.80 = 101,152.40/x
  3. Step 3: Cross multiply
    117,870.80x = 176,611.80 × 101,152.40
  4. Step 4: Simplify right side
    117,870.80x = 17,864,707,438.32
  5. Step 5: Solve for x
    x = 17,864,707,438.32/117,870.80
  6. Step 6: Final answer
    x = 151,561.77

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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.