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Finding the Fourth Proportional to 576,071.24, 864,106.95 and 155,347.16

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Solution

The fourth proportional to 576,071.24, 864,106.95 and 155,347.16 is: 233,020.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,071.24 : 864,106.95 = 155,347.16 : x
  2. Step 2: Convert to fraction form
    576,071.24/864,106.95 = 155,347.16/x
  3. Step 3: Cross multiply
    576,071.24x = 864,106.95 × 155,347.16
  4. Step 4: Simplify right side
    576,071.24x = 134,236,560,618.76
  5. Step 5: Solve for x
    x = 134,236,560,618.76/576,071.24
  6. Step 6: Final answer
    x = 233,020.76

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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.