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Finding the Fourth Proportional to 147,907.20, 221,860.80 and 64,963.20

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Solution

The fourth proportional to 147,907.20, 221,860.80 and 64,963.20 is: 97,444.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,907.20 : 221,860.80 = 64,963.20 : x
  2. Step 2: Convert to fraction form
    147,907.20/221,860.80 = 64,963.20/x
  3. Step 3: Cross multiply
    147,907.20x = 221,860.80 × 64,963.20
  4. Step 4: Simplify right side
    147,907.20x = 14,412,787,522.56
  5. Step 5: Solve for x
    x = 14,412,787,522.56/147,907.20
  6. Step 6: Final answer
    x = 97,444.80

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1.5x scale

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.