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Finding the Fourth Proportional to 245,461.17, 368,230.98 and 85,583.12

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Solution

The fourth proportional to 245,461.17, 368,230.98 and 85,583.12 is: 128,388.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,461.17 : 368,230.98 = 85,583.12 : x
  2. Step 2: Convert to fraction form
    245,461.17/368,230.98 = 85,583.12/x
  3. Step 3: Cross multiply
    245,461.17x = 368,230.98 × 85,583.12
  4. Step 4: Simplify right side
    245,461.17x = 31,514,356,149.06
  5. Step 5: Solve for x
    x = 31,514,356,149.06/245,461.17
  6. Step 6: Final answer
    x = 128,388.36

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1.5x scale

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.