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Finding the Fourth Proportional to 375,572.16, 562,964.58 and 138,763.80

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Solution

The fourth proportional to 375,572.16, 562,964.58 and 138,763.80 is: 208,000.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,572.16 : 562,964.58 = 138,763.80 : x
  2. Step 2: Convert to fraction form
    375,572.16/562,964.58 = 138,763.80/x
  3. Step 3: Cross multiply
    375,572.16x = 562,964.58 × 138,763.80
  4. Step 4: Simplify right side
    375,572.16x = 78,119,104,386.20
  5. Step 5: Solve for x
    x = 78,119,104,386.20/375,572.16
  6. Step 6: Final answer
    x = 208,000.25

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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.