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Finding the Fourth Proportional to 118,706.81, 178,074.27 and 74,337.23

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Solution

The fourth proportional to 118,706.81, 178,074.27 and 74,337.23 is: 111,514.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,706.81 : 178,074.27 = 74,337.23 : x
  2. Step 2: Convert to fraction form
    118,706.81/178,074.27 = 74,337.23/x
  3. Step 3: Cross multiply
    118,706.81x = 178,074.27 × 74,337.23
  4. Step 4: Simplify right side
    118,706.81x = 13,237,547,075.70
  5. Step 5: Solve for x
    x = 13,237,547,075.70/118,706.81
  6. Step 6: Final answer
    x = 111,514.64

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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.