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Finding the Fourth Proportional to 106,953.40, 160,430.10 and 28,075.60

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Solution

The fourth proportional to 106,953.40, 160,430.10 and 28,075.60 is: 42,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,953.40 : 160,430.10 = 28,075.60 : x
  2. Step 2: Convert to fraction form
    106,953.40/160,430.10 = 28,075.60/x
  3. Step 3: Cross multiply
    106,953.40x = 160,430.10 × 28,075.60
  4. Step 4: Simplify right side
    106,953.40x = 4,504,171,315.56
  5. Step 5: Solve for x
    x = 4,504,171,315.56/106,953.40
  6. Step 6: Final answer
    x = 42,113.40

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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.