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Finding the Fourth Proportional to 153,802.04, 212,232.11 and 93,405.78

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Solution

The fourth proportional to 153,802.04, 212,232.11 and 93,405.78 is: 128,891.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,802.04 : 212,232.11 = 93,405.78 : x
  2. Step 2: Convert to fraction form
    153,802.04/212,232.11 = 93,405.78/x
  3. Step 3: Cross multiply
    153,802.04x = 212,232.11 × 93,405.78
  4. Step 4: Simplify right side
    153,802.04x = 19,823,705,308.57
  5. Step 5: Solve for x
    x = 19,823,705,308.57/153,802.04
  6. Step 6: Final answer
    x = 128,891.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.