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Finding the Fourth Proportional to 118,359.63, 163,339.34 and 64,644.08

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Solution

The fourth proportional to 118,359.63, 163,339.34 and 64,644.08 is: 89,210.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,359.63 : 163,339.34 = 64,644.08 : x
  2. Step 2: Convert to fraction form
    118,359.63/163,339.34 = 64,644.08/x
  3. Step 3: Cross multiply
    118,359.63x = 163,339.34 × 64,644.08
  4. Step 4: Simplify right side
    118,359.63x = 10,558,920,222.19
  5. Step 5: Solve for x
    x = 10,558,920,222.19/118,359.63
  6. Step 6: Final answer
    x = 89,210.49

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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.