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Finding the Fourth Proportional to 256,967.82, 385,349.58 and 99,095.58

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Solution

The fourth proportional to 256,967.82, 385,349.58 and 99,095.58 is: 148,603.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,967.82 : 385,349.58 = 99,095.58 : x
  2. Step 2: Convert to fraction form
    256,967.82/385,349.58 = 99,095.58/x
  3. Step 3: Cross multiply
    256,967.82x = 385,349.58 × 99,095.58
  4. Step 4: Simplify right side
    256,967.82x = 38,186,440,132.86
  5. Step 5: Solve for x
    x = 38,186,440,132.86/256,967.82
  6. Step 6: Final answer
    x = 148,603.98

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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.