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Finding the Fourth Proportional to 105,246, 145,239.48 and 60,534

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Solution

The fourth proportional to 105,246, 145,239.48 and 60,534 is: 83,536.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,246 : 145,239.48 = 60,534 : x
  2. Step 2: Convert to fraction form
    105,246/145,239.48 = 60,534/x
  3. Step 3: Cross multiply
    105,246x = 145,239.48 × 60,534
  4. Step 4: Simplify right side
    105,246x = 8,791,926,682.32
  5. Step 5: Solve for x
    x = 8,791,926,682.32/105,246
  6. Step 6: Final answer
    x = 83,536.92

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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.