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Finding the Fourth Proportional to 238,328.98, 328,897.95 and 130,908.94

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Solution

The fourth proportional to 238,328.98, 328,897.95 and 130,908.94 is: 180,656.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,328.98 : 328,897.95 = 130,908.94 : x
  2. Step 2: Convert to fraction form
    238,328.98/328,897.95 = 130,908.94/x
  3. Step 3: Cross multiply
    238,328.98x = 328,897.95 × 130,908.94
  4. Step 4: Simplify right side
    238,328.98x = 43,055,682,002.67
  5. Step 5: Solve for x
    x = 43,055,682,002.67/238,328.98
  6. Step 6: Final answer
    x = 180,656.51

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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.