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Finding the Fourth Proportional to 370,458.40, 555,769.61 and 117,816.16

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Solution

The fourth proportional to 370,458.40, 555,769.61 and 117,816.16 is: 176,750.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,458.40 : 555,769.61 = 117,816.16 : x
  2. Step 2: Convert to fraction form
    370,458.40/555,769.61 = 117,816.16/x
  3. Step 3: Cross multiply
    370,458.40x = 555,769.61 × 117,816.16
  4. Step 4: Simplify right side
    370,458.40x = 65,478,641,294.90
  5. Step 5: Solve for x
    x = 65,478,641,294.90/370,458.40
  6. Step 6: Final answer
    x = 176,750.32

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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.