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Finding the Fourth Proportional to 93,303.80, 128,758.87 and 50,862.33

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Solution

The fourth proportional to 93,303.80, 128,758.87 and 50,862.33 is: 70,189.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,303.80 : 128,758.87 = 50,862.33 : x
  2. Step 2: Convert to fraction form
    93,303.80/128,758.87 = 50,862.33/x
  3. Step 3: Cross multiply
    93,303.80x = 128,758.87 × 50,862.33
  4. Step 4: Simplify right side
    93,303.80x = 6,548,975,913.84
  5. Step 5: Solve for x
    x = 6,548,975,913.84/93,303.80
  6. Step 6: Final answer
    x = 70,189.81

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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.