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Finding the Fourth Proportional to 251,046.55, 346,316.14 and 160,307.11

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Solution

The fourth proportional to 251,046.55, 346,316.14 and 160,307.11 is: 221,142.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,046.55 : 346,316.14 = 160,307.11 : x
  2. Step 2: Convert to fraction form
    251,046.55/346,316.14 = 160,307.11/x
  3. Step 3: Cross multiply
    251,046.55x = 346,316.14 × 160,307.11
  4. Step 4: Simplify right side
    251,046.55x = 55,516,939,549.76
  5. Step 5: Solve for x
    x = 55,516,939,549.76/251,046.55
  6. Step 6: Final answer
    x = 221,142.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.