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Finding the Fourth Proportional to 93,127.88, 128,516.48 and 50,686.71

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Solution

The fourth proportional to 93,127.88, 128,516.48 and 50,686.71 is: 69,947.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,127.88 : 128,516.48 = 50,686.71 : x
  2. Step 2: Convert to fraction form
    93,127.88/128,516.48 = 50,686.71/x
  3. Step 3: Cross multiply
    93,127.88x = 128,516.48 × 50,686.71
  4. Step 4: Simplify right side
    93,127.88x = 6,514,077,298.55
  5. Step 5: Solve for x
    x = 6,514,077,298.55/93,127.88
  6. Step 6: Final answer
    x = 69,947.66

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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.