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Finding the Fourth Proportional to 158,435.70, 237,653.55 and 147,938.10

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Solution

The fourth proportional to 158,435.70, 237,653.55 and 147,938.10 is: 221,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,435.70 : 237,653.55 = 147,938.10 : x
  2. Step 2: Convert to fraction form
    158,435.70/237,653.55 = 147,938.10/x
  3. Step 3: Cross multiply
    158,435.70x = 237,653.55 × 147,938.10
  4. Step 4: Simplify right side
    158,435.70x = 35,158,014,645.26
  5. Step 5: Solve for x
    x = 35,158,014,645.26/158,435.70
  6. Step 6: Final answer
    x = 221,907.15

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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.