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Finding the Fourth Proportional to 375,055.44, 562,431.68 and 138,345.60

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Solution

The fourth proportional to 375,055.44, 562,431.68 and 138,345.60 is: 207,462.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,055.44 : 562,431.68 = 138,345.60 : x
  2. Step 2: Convert to fraction form
    375,055.44/562,431.68 = 138,345.60/x
  3. Step 3: Cross multiply
    375,055.44x = 562,431.68 × 138,345.60
  4. Step 4: Simplify right side
    375,055.44x = 77,809,948,228.61
  5. Step 5: Solve for x
    x = 77,809,948,228.61/375,055.44
  6. Step 6: Final answer
    x = 207,462.52

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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.