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Finding the Fourth Proportional to 70,514,442.40, 105,771,663.60 and 61,556,490.40

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Solution

The fourth proportional to 70,514,442.40, 105,771,663.60 and 61,556,490.40 is: 92,334,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,514,442.40 : 105,771,663.60 = 61,556,490.40 : x
  2. Step 2: Convert to fraction form
    70,514,442.40/105,771,663.60 = 61,556,490.40/x
  3. Step 3: Cross multiply
    70,514,442.40x = 105,771,663.60 × 61,556,490.40
  4. Step 4: Simplify right side
    70,514,442.40x = 6,510,932,394,985,429
  5. Step 5: Solve for x
    x = 6,510,932,394,985,429/70,514,442.40
  6. Step 6: Final answer
    x = 92,334,735.60

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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.