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Finding the Fourth Proportional to 70,417,685.90, 105,551,978.96 and 23,686,684.58

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Solution

The fourth proportional to 70,417,685.90, 105,551,978.96 and 23,686,684.58 is: 35,504,950.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,417,685.90 : 105,551,978.96 = 23,686,684.58 : x
  2. Step 2: Convert to fraction form
    70,417,685.90/105,551,978.96 = 23,686,684.58/x
  3. Step 3: Cross multiply
    70,417,685.90x = 105,551,978.96 × 23,686,684.58
  4. Step 4: Simplify right side
    70,417,685.90x = 2,500,176,432,420,316
  5. Step 5: Solve for x
    x = 2,500,176,432,420,316/70,417,685.90
  6. Step 6: Final answer
    x = 35,504,950.22

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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.