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Finding the Fourth Proportional to 93,070.69, 128,437.45 and 50,629.12

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Solution

The fourth proportional to 93,070.69, 128,437.45 and 50,629.12 is: 69,868.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,070.69 : 128,437.45 = 50,629.12 : x
  2. Step 2: Convert to fraction form
    93,070.69/128,437.45 = 50,629.12/x
  3. Step 3: Cross multiply
    93,070.69x = 128,437.45 × 50,629.12
  4. Step 4: Simplify right side
    93,070.69x = 6,502,675,068.54
  5. Step 5: Solve for x
    x = 6,502,675,068.54/93,070.69
  6. Step 6: Final answer
    x = 69,868.13

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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.