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Finding the Fourth Proportional to 250,461.48, 345,651 and 148,547.28

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Solution

The fourth proportional to 250,461.48, 345,651 and 148,547.28 is: 205,003.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,461.48 : 345,651 = 148,547.28 : x
  2. Step 2: Convert to fraction form
    250,461.48/345,651 = 148,547.28/x
  3. Step 3: Cross multiply
    250,461.48x = 345,651 × 148,547.28
  4. Step 4: Simplify right side
    250,461.48x = 51,345,515,879.28
  5. Step 5: Solve for x
    x = 51,345,515,879.28/250,461.48
  6. Step 6: Final answer
    x = 205,003.64

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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.