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Finding the Fourth Proportional to 67,068,003.80, 100,602,005.70 and 55,730,595.80

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Solution

The fourth proportional to 67,068,003.80, 100,602,005.70 and 55,730,595.80 is: 83,595,893.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068,003.80 : 100,602,005.70 = 55,730,595.80 : x
  2. Step 2: Convert to fraction form
    67,068,003.80/100,602,005.70 = 55,730,595.80/x
  3. Step 3: Cross multiply
    67,068,003.80x = 100,602,005.70 × 55,730,595.80
  4. Step 4: Simplify right side
    67,068,003.80x = 5,606,609,716,335,996
  5. Step 5: Solve for x
    x = 5,606,609,716,335,996/67,068,003.80
  6. Step 6: Final answer
    x = 83,595,893.70

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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.