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Finding the Fourth Proportional to 260,948.81, 360,075.69 and 153,479.63

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Solution

The fourth proportional to 260,948.81, 360,075.69 and 153,479.63 is: 211,782.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,948.81 : 360,075.69 = 153,479.63 : x
  2. Step 2: Convert to fraction form
    260,948.81/360,075.69 = 153,479.63/x
  3. Step 3: Cross multiply
    260,948.81x = 360,075.69 × 153,479.63
  4. Step 4: Simplify right side
    260,948.81x = 55,264,281,872.82
  5. Step 5: Solve for x
    x = 55,264,281,872.82/260,948.81
  6. Step 6: Final answer
    x = 211,782.08

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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.