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Finding the Fourth Proportional to 441,656.16, 662,510.16 and 126,088.80

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Solution

The fourth proportional to 441,656.16, 662,510.16 and 126,088.80 is: 189,140.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,656.16 : 662,510.16 = 126,088.80 : x
  2. Step 2: Convert to fraction form
    441,656.16/662,510.16 = 126,088.80/x
  3. Step 3: Cross multiply
    441,656.16x = 662,510.16 × 126,088.80
  4. Step 4: Simplify right side
    441,656.16x = 83,535,111,062.21
  5. Step 5: Solve for x
    x = 83,535,111,062.21/441,656.16
  6. Step 6: Final answer
    x = 189,140.60

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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.