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Finding the Fourth Proportional to 253,461.90, 349,839.72 and 151,547.70

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Solution

The fourth proportional to 253,461.90, 349,839.72 and 151,547.70 is: 209,173.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,461.90 : 349,839.72 = 151,547.70 : x
  2. Step 2: Convert to fraction form
    253,461.90/349,839.72 = 151,547.70/x
  3. Step 3: Cross multiply
    253,461.90x = 349,839.72 × 151,547.70
  4. Step 4: Simplify right side
    253,461.90x = 53,017,404,934.64
  5. Step 5: Solve for x
    x = 53,017,404,934.64/253,461.90
  6. Step 6: Final answer
    x = 209,173.07

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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.