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Finding the Fourth Proportional to 474,033,561.76, 710,978,497.36 and 129,014,074.72

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Solution

The fourth proportional to 474,033,561.76, 710,978,497.36 and 129,014,074.72 is: 193,501,558.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,033,561.76 : 710,978,497.36 = 129,014,074.72 : x
  2. Step 2: Convert to fraction form
    474,033,561.76/710,978,497.36 = 129,014,074.72/x
  3. Step 3: Cross multiply
    474,033,561.76x = 710,978,497.36 × 129,014,074.72
  4. Step 4: Simplify right side
    474,033,561.76x = 91,726,232,982,716,368
  5. Step 5: Solve for x
    x = 91,726,232,982,716,368/474,033,561.76
  6. Step 6: Final answer
    x = 193,501,558.50

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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.