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Finding the Fourth Proportional to 70,417,184.40, 105,499,805.40 and 59,583,661.20

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Solution

The fourth proportional to 70,417,184.40, 105,499,805.40 and 59,583,661.20 is: 89,268,900.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,417,184.40 : 105,499,805.40 = 59,583,661.20 : x
  2. Step 2: Convert to fraction form
    70,417,184.40/105,499,805.40 = 59,583,661.20/x
  3. Step 3: Cross multiply
    70,417,184.40x = 105,499,805.40 × 59,583,661.20
  4. Step 4: Simplify right side
    70,417,184.40x = 6,286,064,661,619,531
  5. Step 5: Solve for x
    x = 6,286,064,661,619,531/70,417,184.40
  6. Step 6: Final answer
    x = 89,268,900.98

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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.