Finding the Fourth Proportional to 135,694,972.77, 187,258,920.71 and 73,815,163.71
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Solution
The fourth proportional to 135,694,972.77, 187,258,920.71 and 73,815,163.71 is: 101,864,848.83
Step by Step Solution
- Step 1: Write the proportion equation
135,694,972.77 : 187,258,920.71 = 73,815,163.71 : x - Step 2: Convert to fraction form
135,694,972.77/187,258,920.71 = 73,815,163.71/x - Step 3: Cross multiply
135,694,972.77x = 187,258,920.71 × 73,815,163.71 - Step 4: Simplify right side
135,694,972.77x = 13,822,547,887,997,484 - Step 5: Solve for x
x = 13,822,547,887,997,484/135,694,972.77 - Step 6: Final answer
x = 101,864,848.83
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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.