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Finding the Fourth Proportional to 114,970.40, 158,647.92 and 64,668.32

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Solution

The fourth proportional to 114,970.40, 158,647.92 and 64,668.32 is: 89,235.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,970.40 : 158,647.92 = 64,668.32 : x
  2. Step 2: Convert to fraction form
    114,970.40/158,647.92 = 64,668.32/x
  3. Step 3: Cross multiply
    114,970.40x = 158,647.92 × 64,668.32
  4. Step 4: Simplify right side
    114,970.40x = 10,259,494,457.89
  5. Step 5: Solve for x
    x = 10,259,494,457.89/114,970.40
  6. Step 6: Final answer
    x = 89,235.96

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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.