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Finding the Fourth Proportional to 64,495,579.68, 89,003,900.40 and 35,522,203.68

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Solution

The fourth proportional to 64,495,579.68, 89,003,900.40 and 35,522,203.68 is: 49,020,641.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,495,579.68 : 89,003,900.40 = 35,522,203.68 : x
  2. Step 2: Convert to fraction form
    64,495,579.68/89,003,900.40 = 35,522,203.68/x
  3. Step 3: Cross multiply
    64,495,579.68x = 89,003,900.40 × 35,522,203.68
  4. Step 4: Simplify right side
    64,495,579.68x = 3,161,614,678,323,233.50
  5. Step 5: Solve for x
    x = 3,161,614,678,323,233.50/64,495,579.68
  6. Step 6: Final answer
    x = 49,020,641.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.