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Finding the Fourth Proportional to 97,070.73, 133,931.46 and 56,794.40

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Solution

The fourth proportional to 97,070.73, 133,931.46 and 56,794.40 is: 78,360.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,070.73 : 133,931.46 = 56,794.40 : x
  2. Step 2: Convert to fraction form
    97,070.73/133,931.46 = 56,794.40/x
  3. Step 3: Cross multiply
    97,070.73x = 133,931.46 × 56,794.40
  4. Step 4: Simplify right side
    97,070.73x = 7,606,555,958.19
  5. Step 5: Solve for x
    x = 7,606,555,958.19/97,070.73
  6. Step 6: Final answer
    x = 78,360.96

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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.