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Finding the Fourth Proportional to 201,352.40, 302,030.40 and 61,111.02

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Solution

The fourth proportional to 201,352.40, 302,030.40 and 61,111.02 is: 91,667.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,352.40 : 302,030.40 = 61,111.02 : x
  2. Step 2: Convert to fraction form
    201,352.40/302,030.40 = 61,111.02/x
  3. Step 3: Cross multiply
    201,352.40x = 302,030.40 × 61,111.02
  4. Step 4: Simplify right side
    201,352.40x = 18,457,385,815.01
  5. Step 5: Solve for x
    x = 18,457,385,815.01/201,352.40
  6. Step 6: Final answer
    x = 91,667.08

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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.