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Finding the Fourth Proportional to 334,998.20, 502,497.30 and 147,913.40

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Solution

The fourth proportional to 334,998.20, 502,497.30 and 147,913.40 is: 221,870.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,998.20 : 502,497.30 = 147,913.40 : x
  2. Step 2: Convert to fraction form
    334,998.20/502,497.30 = 147,913.40/x
  3. Step 3: Cross multiply
    334,998.20x = 502,497.30 × 147,913.40
  4. Step 4: Simplify right side
    334,998.20x = 74,326,084,133.82
  5. Step 5: Solve for x
    x = 74,326,084,133.82/334,998.20
  6. Step 6: Final answer
    x = 221,870.10

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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.