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Finding the Fourth Proportional to 118,643.22, 163,724.94 and 64,927.62

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Solution

The fourth proportional to 118,643.22, 163,724.94 and 64,927.62 is: 89,598.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,643.22 : 163,724.94 = 64,927.62 : x
  2. Step 2: Convert to fraction form
    118,643.22/163,724.94 = 64,927.62/x
  3. Step 3: Cross multiply
    118,643.22x = 163,724.94 × 64,927.62
  4. Step 4: Simplify right side
    118,643.22x = 10,630,270,688.84
  5. Step 5: Solve for x
    x = 10,630,270,688.84/118,643.22
  6. Step 6: Final answer
    x = 89,598.64

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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.