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Finding the Fourth Proportional to 369,101.89, 553,730.06 and 155,870.30

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Solution

The fourth proportional to 369,101.89, 553,730.06 and 155,870.30 is: 233,838.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,101.89 : 553,730.06 = 155,870.30 : x
  2. Step 2: Convert to fraction form
    369,101.89/553,730.06 = 155,870.30/x
  3. Step 3: Cross multiply
    369,101.89x = 553,730.06 × 155,870.30
  4. Step 4: Simplify right side
    369,101.89x = 86,310,070,568.66
  5. Step 5: Solve for x
    x = 86,310,070,568.66/369,101.89
  6. Step 6: Final answer
    x = 233,838.06

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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.