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Finding the Fourth Proportional to 128,064.96, 192,075.66 and 46,995.30

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Solution

The fourth proportional to 128,064.96, 192,075.66 and 46,995.30 is: 70,484.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,064.96 : 192,075.66 = 46,995.30 : x
  2. Step 2: Convert to fraction form
    128,064.96/192,075.66 = 46,995.30/x
  3. Step 3: Cross multiply
    128,064.96x = 192,075.66 × 46,995.30
  4. Step 4: Simplify right side
    128,064.96x = 9,026,653,264.40
  5. Step 5: Solve for x
    x = 9,026,653,264.40/128,064.96
  6. Step 6: Final answer
    x = 70,484.96

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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.