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Finding the Fourth Proportional to 97,798,413.60, 146,697,620.40 and 87,594,746.40

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Solution

The fourth proportional to 97,798,413.60, 146,697,620.40 and 87,594,746.40 is: 131,392,119.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,798,413.60 : 146,697,620.40 = 87,594,746.40 : x
  2. Step 2: Convert to fraction form
    97,798,413.60/146,697,620.40 = 87,594,746.40/x
  3. Step 3: Cross multiply
    97,798,413.60x = 146,697,620.40 × 87,594,746.40
  4. Step 4: Simplify right side
    97,798,413.60x = 12,849,940,856,421,468
  5. Step 5: Solve for x
    x = 12,849,940,856,421,468/97,798,413.60
  6. Step 6: Final answer
    x = 131,392,119.60

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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.