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Finding the Fourth Proportional to 93,393.03, 128,881.75 and 53,106.78

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Solution

The fourth proportional to 93,393.03, 128,881.75 and 53,106.78 is: 73,287.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,393.03 : 128,881.75 = 53,106.78 : x
  2. Step 2: Convert to fraction form
    93,393.03/128,881.75 = 53,106.78/x
  3. Step 3: Cross multiply
    93,393.03x = 128,881.75 × 53,106.78
  4. Step 4: Simplify right side
    93,393.03x = 6,844,494,743.27
  5. Step 5: Solve for x
    x = 6,844,494,743.27/93,393.03
  6. Step 6: Final answer
    x = 73,287.00

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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.