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Finding the Fourth Proportional to 64,693,742.80, 96,775,193.40 and 58,323,643.60

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Solution

The fourth proportional to 64,693,742.80, 96,775,193.40 and 58,323,643.60 is: 87,246,179.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,693,742.80 : 96,775,193.40 = 58,323,643.60 : x
  2. Step 2: Convert to fraction form
    64,693,742.80/96,775,193.40 = 58,323,643.60/x
  3. Step 3: Cross multiply
    64,693,742.80x = 96,775,193.40 × 58,323,643.60
  4. Step 4: Simplify right side
    64,693,742.80x = 5,644,281,889,182,673
  5. Step 5: Solve for x
    x = 5,644,281,889,182,673/64,693,742.80
  6. Step 6: Final answer
    x = 87,246,179.38

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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.