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Finding the Fourth Proportional to 201,886.40, 302,465.10 and 117,577.55

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Solution

The fourth proportional to 201,886.40, 302,465.10 and 117,577.55 is: 176,154.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,886.40 : 302,465.10 = 117,577.55 : x
  2. Step 2: Convert to fraction form
    201,886.40/302,465.10 = 117,577.55/x
  3. Step 3: Cross multiply
    201,886.40x = 302,465.10 × 117,577.55
  4. Step 4: Simplify right side
    201,886.40x = 35,563,105,418.51
  5. Step 5: Solve for x
    x = 35,563,105,418.51/201,886.40
  6. Step 6: Final answer
    x = 176,154.04

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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.