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Finding the Fourth Proportional to 65,913,458.40, 98,870,187.60 and 65,913,458.40

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Solution

The fourth proportional to 65,913,458.40, 98,870,187.60 and 65,913,458.40 is: 98,870,187.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,913,458.40 : 98,870,187.60 = 65,913,458.40 : x
  2. Step 2: Convert to fraction form
    65,913,458.40/98,870,187.60 = 65,913,458.40/x
  3. Step 3: Cross multiply
    65,913,458.40x = 98,870,187.60 × 65,913,458.40
  4. Step 4: Simplify right side
    65,913,458.40x = 6,516,875,997,372,795
  5. Step 5: Solve for x
    x = 6,516,875,997,372,795/65,913,458.40
  6. Step 6: Final answer
    x = 98,870,187.60

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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.