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Finding the Fourth Proportional to 107,894,682.40, 161,842,023.60 and 98,068,928.80

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Solution

The fourth proportional to 107,894,682.40, 161,842,023.60 and 98,068,928.80 is: 147,103,393.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,894,682.40 : 161,842,023.60 = 98,068,928.80 : x
  2. Step 2: Convert to fraction form
    107,894,682.40/161,842,023.60 = 98,068,928.80/x
  3. Step 3: Cross multiply
    107,894,682.40x = 161,842,023.60 × 98,068,928.80
  4. Step 4: Simplify right side
    107,894,682.40x = 15,871,673,889,276,318
  5. Step 5: Solve for x
    x = 15,871,673,889,276,318/107,894,682.40
  6. Step 6: Final answer
    x = 147,103,393.20

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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.