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Finding the Fourth Proportional to 65,996,985.60, 98,995,478.40 and 61,518,009.60

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Solution

The fourth proportional to 65,996,985.60, 98,995,478.40 and 61,518,009.60 is: 92,277,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,996,985.60 : 98,995,478.40 = 61,518,009.60 : x
  2. Step 2: Convert to fraction form
    65,996,985.60/98,995,478.40 = 61,518,009.60/x
  3. Step 3: Cross multiply
    65,996,985.60x = 98,995,478.40 × 61,518,009.60
  4. Step 4: Simplify right side
    65,996,985.60x = 6,090,004,790,567,793
  5. Step 5: Solve for x
    x = 6,090,004,790,567,793/65,996,985.60
  6. Step 6: Final answer
    x = 92,277,014.40

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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.