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Finding the Fourth Proportional to 238,328.70, 328,895.55 and 130,900.02

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Solution

The fourth proportional to 238,328.70, 328,895.55 and 130,900.02 is: 180,643.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,328.70 : 328,895.55 = 130,900.02 : x
  2. Step 2: Convert to fraction form
    238,328.70/328,895.55 = 130,900.02/x
  3. Step 3: Cross multiply
    238,328.70x = 328,895.55 × 130,900.02
  4. Step 4: Simplify right side
    238,328.70x = 43,052,434,072.91
  5. Step 5: Solve for x
    x = 43,052,434,072.91/238,328.70
  6. Step 6: Final answer
    x = 180,643.10

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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.