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Finding the Fourth Proportional to 215,858.45, 297,886.59 and 119,066.01

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Solution

The fourth proportional to 215,858.45, 297,886.59 and 119,066.01 is: 164,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,858.45 : 297,886.59 = 119,066.01 : x
  2. Step 2: Convert to fraction form
    215,858.45/297,886.59 = 119,066.01/x
  3. Step 3: Cross multiply
    215,858.45x = 297,886.59 × 119,066.01
  4. Step 4: Simplify right side
    215,858.45x = 35,468,167,703.81
  5. Step 5: Solve for x
    x = 35,468,167,703.81/215,858.45
  6. Step 6: Final answer
    x = 164,312.16

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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.