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Finding the Fourth Proportional to 98,893,293.80, 148,339,940.70 and 64,834,413.80

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Solution

The fourth proportional to 98,893,293.80, 148,339,940.70 and 64,834,413.80 is: 97,251,620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,893,293.80 : 148,339,940.70 = 64,834,413.80 : x
  2. Step 2: Convert to fraction form
    98,893,293.80/148,339,940.70 = 64,834,413.80/x
  3. Step 3: Cross multiply
    98,893,293.80x = 148,339,940.70 × 64,834,413.80
  4. Step 4: Simplify right side
    98,893,293.80x = 9,617,533,098,411,260
  5. Step 5: Solve for x
    x = 9,617,533,098,411,260/98,893,293.80
  6. Step 6: Final answer
    x = 97,251,620.70

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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.