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Finding the Fourth Proportional to 93,356.36, 128,831.19 and 53,070.12

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Solution

The fourth proportional to 93,356.36, 128,831.19 and 53,070.12 is: 73,236.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,356.36 : 128,831.19 = 53,070.12 : x
  2. Step 2: Convert to fraction form
    93,356.36/128,831.19 = 53,070.12/x
  3. Step 3: Cross multiply
    93,356.36x = 128,831.19 × 53,070.12
  4. Step 4: Simplify right side
    93,356.36x = 6,837,086,713.04
  5. Step 5: Solve for x
    x = 6,837,086,713.04/93,356.36
  6. Step 6: Final answer
    x = 73,236.43

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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.