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Finding the Fourth Proportional to 56,793,985.40, 85,190,978.10 and 35,294,900.60

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Solution

The fourth proportional to 56,793,985.40, 85,190,978.10 and 35,294,900.60 is: 52,942,350.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,793,985.40 : 85,190,978.10 = 35,294,900.60 : x
  2. Step 2: Convert to fraction form
    56,793,985.40/85,190,978.10 = 35,294,900.60/x
  3. Step 3: Cross multiply
    56,793,985.40x = 85,190,978.10 × 35,294,900.60
  4. Step 4: Simplify right side
    56,793,985.40x = 3,006,807,104,056,277
  5. Step 5: Solve for x
    x = 3,006,807,104,056,277/56,793,985.40
  6. Step 6: Final answer
    x = 52,942,350.90

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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.