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Finding the Fourth Proportional to 268,566.40, 370,592.56 and 155,368

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Solution

The fourth proportional to 268,566.40, 370,592.56 and 155,368 is: 214,391.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,566.40 : 370,592.56 = 155,368 : x
  2. Step 2: Convert to fraction form
    268,566.40/370,592.56 = 155,368/x
  3. Step 3: Cross multiply
    268,566.40x = 370,592.56 × 155,368
  4. Step 4: Simplify right side
    268,566.40x = 57,578,224,862.08
  5. Step 5: Solve for x
    x = 57,578,224,862.08/268,566.40
  6. Step 6: Final answer
    x = 214,391.02

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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.