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Finding the Fourth Proportional to 65,286,706.50, 90,095,655.06 and 35,917,410.60

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Solution

The fourth proportional to 65,286,706.50, 90,095,655.06 and 35,917,410.60 is: 49,566,026.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,286,706.50 : 90,095,655.06 = 35,917,410.60 : x
  2. Step 2: Convert to fraction form
    65,286,706.50/90,095,655.06 = 35,917,410.60/x
  3. Step 3: Cross multiply
    65,286,706.50x = 90,095,655.06 × 35,917,410.60
  4. Step 4: Simplify right side
    65,286,706.50x = 3,236,002,636,065,988
  5. Step 5: Solve for x
    x = 3,236,002,636,065,988/65,286,706.50
  6. Step 6: Final answer
    x = 49,566,026.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.