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Finding the Fourth Proportional to 147,316.40, 221,051.40 and 64,218.80

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Solution

The fourth proportional to 147,316.40, 221,051.40 and 64,218.80 is: 96,361.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,316.40 : 221,051.40 = 64,218.80 : x
  2. Step 2: Convert to fraction form
    147,316.40/221,051.40 = 64,218.80/x
  3. Step 3: Cross multiply
    147,316.40x = 221,051.40 × 64,218.80
  4. Step 4: Simplify right side
    147,316.40x = 14,195,655,646.32
  5. Step 5: Solve for x
    x = 14,195,655,646.32/147,316.40
  6. Step 6: Final answer
    x = 96,361.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.