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Finding the Fourth Proportional to 105,787,458.57, 145,978,688.10 and 59,368,744.44

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Solution

The fourth proportional to 105,787,458.57, 145,978,688.10 and 59,368,744.44 is: 81,924,375.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,787,458.57 : 145,978,688.10 = 59,368,744.44 : x
  2. Step 2: Convert to fraction form
    105,787,458.57/145,978,688.10 = 59,368,744.44/x
  3. Step 3: Cross multiply
    105,787,458.57x = 145,978,688.10 × 59,368,744.44
  4. Step 4: Simplify right side
    105,787,458.57x = 8,666,571,427,495,368
  5. Step 5: Solve for x
    x = 8,666,571,427,495,368/105,787,458.57
  6. Step 6: Final answer
    x = 81,924,375.01

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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.