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Finding the Fourth Proportional to 93,486.86, 129,013.53 and 53,196.38

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Solution

The fourth proportional to 93,486.86, 129,013.53 and 53,196.38 is: 73,411.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,486.86 : 129,013.53 = 53,196.38 : x
  2. Step 2: Convert to fraction form
    93,486.86/129,013.53 = 53,196.38/x
  3. Step 3: Cross multiply
    93,486.86x = 129,013.53 × 53,196.38
  4. Step 4: Simplify right side
    93,486.86x = 6,863,052,767.02
  5. Step 5: Solve for x
    x = 6,863,052,767.02/93,486.86
  6. Step 6: Final answer
    x = 73,411.95

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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.