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Finding the Fourth Proportional to 261,574.90, 392,262.74 and 154,988.93

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Solution

The fourth proportional to 261,574.90, 392,262.74 and 154,988.93 is: 232,424.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,574.90 : 392,262.74 = 154,988.93 : x
  2. Step 2: Convert to fraction form
    261,574.90/392,262.74 = 154,988.93/x
  3. Step 3: Cross multiply
    261,574.90x = 392,262.74 × 154,988.93
  4. Step 4: Simplify right side
    261,574.90x = 60,796,380,777.63
  5. Step 5: Solve for x
    x = 60,796,380,777.63/261,574.90
  6. Step 6: Final answer
    x = 232,424.37

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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.