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Finding the Fourth Proportional to 71,365,405.60, 107,048,108.40 and 23,490,128.80

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Solution

The fourth proportional to 71,365,405.60, 107,048,108.40 and 23,490,128.80 is: 35,235,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,365,405.60 : 107,048,108.40 = 23,490,128.80 : x
  2. Step 2: Convert to fraction form
    71,365,405.60/107,048,108.40 = 23,490,128.80/x
  3. Step 3: Cross multiply
    71,365,405.60x = 107,048,108.40 × 23,490,128.80
  4. Step 4: Simplify right side
    71,365,405.60x = 2,514,573,854,112,362
  5. Step 5: Solve for x
    x = 2,514,573,854,112,362/71,365,405.60
  6. Step 6: Final answer
    x = 35,235,193.20

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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.