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Finding the Fourth Proportional to 93,352.86, 128,790.27 and 57,480.66

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Solution

The fourth proportional to 93,352.86, 128,790.27 and 57,480.66 is: 79,300.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,352.86 : 128,790.27 = 57,480.66 : x
  2. Step 2: Convert to fraction form
    93,352.86/128,790.27 = 57,480.66/x
  3. Step 3: Cross multiply
    93,352.86x = 128,790.27 × 57,480.66
  4. Step 4: Simplify right side
    93,352.86x = 7,402,949,721.18
  5. Step 5: Solve for x
    x = 7,402,949,721.18/93,352.86
  6. Step 6: Final answer
    x = 79,300.73

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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.