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Finding the Fourth Proportional to 95,421.40, 133,415 and 95,421.40

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Solution

The fourth proportional to 95,421.40, 133,415 and 95,421.40 is: 133,415

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,421.40 : 133,415 = 95,421.40 : x
  2. Step 2: Convert to fraction form
    95,421.40/133,415 = 95,421.40/x
  3. Step 3: Cross multiply
    95,421.40x = 133,415 × 95,421.40
  4. Step 4: Simplify right side
    95,421.40x = 12,730,646,081
  5. Step 5: Solve for x
    x = 12,730,646,081/95,421.40
  6. Step 6: Final answer
    x = 133,415

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.