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Finding the Fourth Proportional to 180,525.61, 249,133.13 and 99,953.14

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Solution

The fourth proportional to 180,525.61, 249,133.13 and 99,953.14 is: 137,939.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,525.61 : 249,133.13 = 99,953.14 : x
  2. Step 2: Convert to fraction form
    180,525.61/249,133.13 = 99,953.14/x
  3. Step 3: Cross multiply
    180,525.61x = 249,133.13 × 99,953.14
  4. Step 4: Simplify right side
    180,525.61x = 24,901,637,375.86
  5. Step 5: Solve for x
    x = 24,901,637,375.86/180,525.61
  6. Step 6: Final answer
    x = 137,939.64

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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.