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Finding the Fourth Proportional to 98,334,428.80, 147,590,872.80 and 49,846,014.40

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Solution

The fourth proportional to 98,334,428.80, 147,590,872.80 and 49,846,014.40 is: 74,814,252.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,334,428.80 : 147,590,872.80 = 49,846,014.40 : x
  2. Step 2: Convert to fraction form
    98,334,428.80/147,590,872.80 = 49,846,014.40/x
  3. Step 3: Cross multiply
    98,334,428.80x = 147,590,872.80 × 49,846,014.40
  4. Step 4: Simplify right side
    98,334,428.80x = 7,356,816,770,897,369
  5. Step 5: Solve for x
    x = 7,356,816,770,897,369/98,334,428.80
  6. Step 6: Final answer
    x = 74,814,252.35

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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.