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Finding the Fourth Proportional to 508,007.61, 761,477.95 and 170,931.24

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Solution

The fourth proportional to 508,007.61, 761,477.95 and 170,931.24 is: 256,217.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,007.61 : 761,477.95 = 170,931.24 : x
  2. Step 2: Convert to fraction form
    508,007.61/761,477.95 = 170,931.24/x
  3. Step 3: Cross multiply
    508,007.61x = 761,477.95 × 170,931.24
  4. Step 4: Simplify right side
    508,007.61x = 130,160,370,226.16
  5. Step 5: Solve for x
    x = 130,160,370,226.16/508,007.61
  6. Step 6: Final answer
    x = 256,217.36

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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.