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Finding the Fourth Proportional to 118,407.33, 163,404.47 and 64,695.68

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Solution

The fourth proportional to 118,407.33, 163,404.47 and 64,695.68 is: 89,281.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,407.33 : 163,404.47 = 64,695.68 : x
  2. Step 2: Convert to fraction form
    118,407.33/163,404.47 = 64,695.68/x
  3. Step 3: Cross multiply
    118,407.33x = 163,404.47 × 64,695.68
  4. Step 4: Simplify right side
    118,407.33x = 10,571,562,161.19
  5. Step 5: Solve for x
    x = 10,571,562,161.19/118,407.33
  6. Step 6: Final answer
    x = 89,281.32

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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.