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Finding the Fourth Proportional to 65,202,403.80, 97,803,605.70 and 19,758,293.40

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Solution

The fourth proportional to 65,202,403.80, 97,803,605.70 and 19,758,293.40 is: 29,637,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,202,403.80 : 97,803,605.70 = 19,758,293.40 : x
  2. Step 2: Convert to fraction form
    65,202,403.80/97,803,605.70 = 19,758,293.40/x
  3. Step 3: Cross multiply
    65,202,403.80x = 97,803,605.70 × 19,758,293.40
  4. Step 4: Simplify right side
    65,202,403.80x = 1,932,432,336,998,512.25
  5. Step 5: Solve for x
    x = 1,932,432,336,998,512.25/65,202,403.80
  6. Step 6: Final answer
    x = 29,637,440.10

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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.