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Finding the Fourth Proportional to 98,439,458.40, 147,659,187.60 and 98,439,458.40

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Solution

The fourth proportional to 98,439,458.40, 147,659,187.60 and 98,439,458.40 is: 147,659,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,439,458.40 : 147,659,187.60 = 98,439,458.40 : x
  2. Step 2: Convert to fraction form
    98,439,458.40/147,659,187.60 = 98,439,458.40/x
  3. Step 3: Cross multiply
    98,439,458.40x = 147,659,187.60 × 98,439,458.40
  4. Step 4: Simplify right side
    98,439,458.40x = 14,535,490,455,127,996
  5. Step 5: Solve for x
    x = 14,535,490,455,127,996/98,439,458.40
  6. Step 6: Final answer
    x = 147,659,187.60

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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.