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Finding the Fourth Proportional to 118,670.24, 163,764.98 and 64,955.53

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Solution

The fourth proportional to 118,670.24, 163,764.98 and 64,955.53 is: 89,638.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,670.24 : 163,764.98 = 64,955.53 : x
  2. Step 2: Convert to fraction form
    118,670.24/163,764.98 = 64,955.53/x
  3. Step 3: Cross multiply
    118,670.24x = 163,764.98 × 64,955.53
  4. Step 4: Simplify right side
    118,670.24x = 10,637,441,071.34
  5. Step 5: Solve for x
    x = 10,637,441,071.34/118,670.24
  6. Step 6: Final answer
    x = 89,638.66

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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.