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Finding the Fourth Proportional to 93,223.68, 128,648.71 and 50,782.21

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Solution

The fourth proportional to 93,223.68, 128,648.71 and 50,782.21 is: 70,079.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,223.68 : 128,648.71 = 50,782.21 : x
  2. Step 2: Convert to fraction form
    93,223.68/128,648.71 = 50,782.21/x
  3. Step 3: Cross multiply
    93,223.68x = 128,648.71 × 50,782.21
  4. Step 4: Simplify right side
    93,223.68x = 6,533,065,263.66
  5. Step 5: Solve for x
    x = 6,533,065,263.66/93,223.68
  6. Step 6: Final answer
    x = 70,079.46

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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.