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Finding the Fourth Proportional to 111,802.38, 154,293.60 and 64,063.68

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Solution

The fourth proportional to 111,802.38, 154,293.60 and 64,063.68 is: 88,411.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,802.38 : 154,293.60 = 64,063.68 : x
  2. Step 2: Convert to fraction form
    111,802.38/154,293.60 = 64,063.68/x
  3. Step 3: Cross multiply
    111,802.38x = 154,293.60 × 64,063.68
  4. Step 4: Simplify right side
    111,802.38x = 9,884,615,816.45
  5. Step 5: Solve for x
    x = 9,884,615,816.45/111,802.38
  6. Step 6: Final answer
    x = 88,411.50

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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.