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Finding the Fourth Proportional to 107,298.55, 148,069.11 and 58,900.51

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Solution

The fourth proportional to 107,298.55, 148,069.11 and 58,900.51 is: 81,281.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,298.55 : 148,069.11 = 58,900.51 : x
  2. Step 2: Convert to fraction form
    107,298.55/148,069.11 = 58,900.51/x
  3. Step 3: Cross multiply
    107,298.55x = 148,069.11 × 58,900.51
  4. Step 4: Simplify right side
    107,298.55x = 8,721,346,094.25
  5. Step 5: Solve for x
    x = 8,721,346,094.25/107,298.55
  6. Step 6: Final answer
    x = 81,281.12

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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.