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Finding the Fourth Proportional to 185,870.40, 256,492.80 and 105,296.28

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Solution

The fourth proportional to 185,870.40, 256,492.80 and 105,296.28 is: 145,304.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,870.40 : 256,492.80 = 105,296.28 : x
  2. Step 2: Convert to fraction form
    185,870.40/256,492.80 = 105,296.28/x
  3. Step 3: Cross multiply
    185,870.40x = 256,492.80 × 105,296.28
  4. Step 4: Simplify right side
    185,870.40x = 27,007,737,686.78
  5. Step 5: Solve for x
    x = 27,007,737,686.78/185,870.40
  6. Step 6: Final answer
    x = 145,304.13

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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.